Ratchet Wrench Tool

ratchet wrench
A socket wrench, more commonly referred to as a ratchet, is a type of wrench, or tightening tool, that uses separate, removable sockets to fit many different sizes of fittings and fasteners, most commonly nuts and bolts.
same as socket but with a ratchet action
Available in a variety of handle shapes and lengths and used with sockets to make turning nuts and bolts  easier than with a conventional wrench.

tool
A device or implement, esp. one held in the hand, used to carry out a particular function
drive; "The convertible tooled down the street"
A thing used in an occupation or pursuit
A person used or exploited by another
an implement used in the practice of a vocation
instrument: the means whereby some act is accomplished; "my greed was the instrument of my destruction"; "science has given us new tools to fight disease"